Compact disk sales are declining, yet vinyl records have enjoyed a resurgence over the past several years. And last year, cassette sales rose to 129,000 units, an increase of 74% over 2015. So what’s up with cassettes – why so popular all of a sudden? Actually, the numbers are still miniscule compared to the 105 million CDs sold in 2016. Yet the bump in cassette sales reflects a growing appetite for tangible items that fans can cherish.